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ONIX

About Release 3.0

Release 3.0 is a major new version of the ONIX for Books standard, the first since 2001 that is not backwards-compatible with its predecessors. This extensive revision of the format has had two key drivers: the need to improve the handling of digital products (Guidance notes on describing digital products in ONIX are available), and the recognition that the price of maintaining backwards-compatibility has been the increasing number of ‘deprecated’ elements that have had to be maintained – and supported by ONIX receivers – even though they are no longer recommended for use.

At the same time, the opportunity has been taken to introduce important improvements in other areas, although there are many data element groups where little or no change has been considered necessary.

For full background, an overview of the message structure, and a summary of key differences between Release 2.1 and Release 3.0, read the Introduction to ONIX for Books 3.0.

To download the schemas, detailed documentation, samples and supplementary guidelines, go to the Release 3.0 Downloads page.

Or for a summary of ten key areas of change, read on:

Removal of redundant elements All elements that were marked as ‘deprecated’ in the latest revision ONIX 2.1 have been deleted, together with other elements that have been made redundant by the introduction of new features in ONIX 3.0.
Description of digital products The handling of digital products (delivered online or by download rather than on a physical carrier) has been completely re-thought, and has been integrated with the handling of physical products. There is new provision for describing usage permissions or constraints, whether enforced by DRM technology or not.
Handling of multiple-item products, series and sets ONIX 3.0 takes a new approach to the description of series, sets and multiple-item products, which solves some acknowledged problems in earlier releases.
Publishers’ marketing collateral New data element groups have been introduced to cover the much greater variety of marketing ‘collateral’ that publishers are now making available over the Internet, or that publishers and aggregators are citing in order to support more effective online selling.
Sales and distribution in international markets The former Supply Detail, Market Representation and Sales Promotion data element groups have been reorganised into a single major ‘Product Supply’ group to enable the status of a product in different markets to be more clearly and accurately described.
Products related to a single work With the introduction of the ISTC, products can now be related to a parent ‘work’ to identify groups of different editions of the same text.
Multi-lingual metadata Most textual metadata can be provided in multiple languages ‘in parallel’, within a single record.
Blocked records for more efficient updating At a more technical level, ONIX 3.0 Product records are ‘blocked’ in a new way which will permit updates to be sent without complete record replacement.
New schema options The ONIX for Books schema definition is now offered in the ISO standard RNG schema language as well as in W3C DTD and Schema languages.
Implementation and Best Practice Guide EDItEUR now provides extensive guidance on implementation and best practices, which is intended to act as a global benchmark for implementors, to reduce the variation between different interpretations of the standard in different countries, and to ensure that ONIX 3.0 messages are as interoperable as possible on a global scale.

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